COLOSSUS DML Diaphragm Coupling (API 671)

Disc (diaphragm) coupling with full-wrap shaft design and a multi-hole membrane pack: more holes give higher torque and stiffness. Single diaphragm, double diaphragm, inverted and guarded versions. Improves equipment performance and absorbs shock, with no lubrication. Designed to API 671 according to the manufacturer. Common models A, B, C and D.

Key features

• Full-wrap shaft, easy installation and maintenance, long service life
• Suitable for high temperature (below 300 °C) and corrosive areas
• Compensates axial and angular misalignment, absorbs and isolates vibration
• No noise, zero backlash, constant speed, no lubrication
• Low additional load on the connected machines

Technical data

Materials

• Hubs and spacer: 40Cr or 2Cr13
• Membrane pack: 304 with 40Cr or 2Cr13
• Bolts: 35CrMo, 2Cr13 or 40Cr

Applications

• Pumps and compressors in petroleum and petrochemical
• Natural gas and metallurgy
• Marine and steel
• Power and nuclear
• Paper and mining

Standards

Reference standards listed by the manufacturer: API 671, JB/T 9147. Certificates and test reports are provided with the quotation where applicable.

Supplied on quotation and configured to your requirements (size, materials, operating conditions). Manufacturer data sheet and dimension tables available on request.